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LM48557TL/NOPB Datasheet(PDF) 8 Page - Texas Instruments

Part # LM48557TL/NOPB
Description  LM48557 Boomer™ Mono, Bridge-Tied Load, Ceramic Speaker Driver with I2C Volume Control and Reset
PDF  26 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LM48557TL/NOPB Datasheet(HTML) 8 Page - Texas Instruments

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-5
-4
-3
-2
-1
0
0
40
80
120
160
200
CHARGE PUMP LOAD CURRENT (mA)
4
4.2
4.4
4.6
4.8
5
5.2
5.4
5.6
5.8
6
2.5
3
3.5
4
4.5
5
SUPPLY VOLTAGE (V)
0
1
2
3
4
5
6
7
2.5
3
3.5
4
4.5
5
SUPPLY VOLTAGE (V)
f = 10 kHz
f = 1 kHz
-120
+0
-100
-80
-60
-40
-20
20
20k
50 100 200 500
1k 2k
5k 10k
AV = 48 dB
AV = 0 dB
FREQUENCY (Hz)
-60
0
-50
-40
-30
-20
-10
20
20k
50 100 200 500 1k
2k
5k 10k
FREQUENCY (Hz)
LM48557
SNAS486D – JULY 2009 – REVISED MAY 2013
www.ti.com
Typical Performance Characteristics (continued)
CMRR vs Frequency
PSRR vs Frequency
VDD = 4.2V, VRIPPLE = 200mVP-P, AV = 48dB
VDD = 4.2V, VRIPPLE = 200mVP-P
Figure 12.
Figure 13.
Output Voltage vs Supply Voltage
Supply Current vs Supply Voltage
ZL = 1µF + 22Ω, THD+N = 1%
No Load
Figure 14.
Figure 15.
Charge Pump Output Voltage vs Load Current
VDD = 4.2V
Figure 16.
8
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Copyright © 2009–2013, Texas Instruments Incorporated
Product Folder Links: LM48557



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